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    <title>Document</title>
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    <script>
      let arr = [1, 2, 3, 4, 5, 6, 7];

      // const r = arr.filter((v) => [1, 2, 10].includes(v));
      //代码复用
      function inArray(arr) {
        return (v) => arr.includes(v);
      }
      const r = arr.filter(inArray([1, 2, 10]));
      console.log(r);

      // console.log(arr.filter(inArray([1, 2, 10]))); // 1,2
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